CN112317260A - Wet film thickness detection system and method applied to wet film coating equipment - Google Patents
Wet film thickness detection system and method applied to wet film coating equipment Download PDFInfo
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- CN112317260A CN112317260A CN202011225133.0A CN202011225133A CN112317260A CN 112317260 A CN112317260 A CN 112317260A CN 202011225133 A CN202011225133 A CN 202011225133A CN 112317260 A CN112317260 A CN 112317260A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1005—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material already applied to the surface, e.g. coating thickness, weight or pattern
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
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Abstract
The invention provides a wet film thickness detection system and a method applied to wet film coating equipment, wherein the wet film coating equipment comprises a first coating device, a second coating device and a drying device which are sequentially arranged along the tape running direction of a base tape, the first coating device is arranged corresponding to a first surface of the base tape to coat the first surface of the base tape, the second coating device is arranged corresponding to a second surface of the base tape to coat the second surface of the base tape, and the wet film thickness detection system comprises: the first thickness measuring device is arranged between the first coating device and the second coating device to detect the thickness of the first surface wet film of the base band; and the second thickness measuring device is arranged between the second coating device and the drying device to detect the total wet film thickness of the first surface and the second surface of the base band. The invention can improve the accuracy of coating thickness measurement and can improve the safety, reliability and production efficiency of the coating process.
Description
Technical Field
The invention relates to the technical field of wet film coating equipment, in particular to a wet film thickness detection system and a wet film thickness detection method applied to the wet film coating equipment.
Background
The conventional wet film coating process uses a radiation-harmful ray thickness measuring system to detect the thickness of the dried dry film, and the coating die head is controlled through the feedback of the thickness result of the dry film. This process has the following drawbacks:
1, in order to avoid the lack of a direct measurement method for the thickness of a wet material, a radiation-harmful ray thickness gauge is often used for detecting the thickness (or the areal density) of a dry film after being dried by an oven. The coating factory uses a plurality of ray thickness gauges to have the risk of environmental safety supervision and control.
2, the flow time of the dry film measuring point and the wet film die head feedback adjustment control point is long, the position difference is large, the length of the oven is dozens of meters, the closed loop feedback control efficiency is low, and the detection waste of unqualified materials is huge.
3, the thickness change of the wet film in the single-sided and double-sided production process can not be monitored simultaneously in the wet film coating process, so that the common scrapping due to the out-of-tolerance thickness quality exists in the coating process, and a traceability analysis data mode with the out-of-tolerance problem is not easy to establish.
Disclosure of Invention
The invention aims to solve the technical problems and provides a wet film thickness detection system and a method applied to wet film coating equipment, which can avoid using a thickness gauge with radiation hazard aiming at a dry film, draw a thickness feedback position closer and improve the real-time property of thickness feedback, thereby improving the accuracy of coating thickness measurement and improving the safety, reliability and production efficiency of a coating process.
The technical scheme adopted by the invention is as follows:
a wet film thickness detection system applied to a wet film coating apparatus including a first coating device, a second coating device, and a drying device, which are sequentially provided along a running direction of a base tape, the first coating device being provided corresponding to a first face of the base tape to coat the first face of the base tape, the second coating device being provided corresponding to a second face of the base tape to coat the second face of the base tape, the wet film thickness detection system comprising: the first thickness measuring device is arranged between the first coating device and the second coating device to detect the thickness of the first surface wet film of the base band; a second thickness measuring device disposed between the second coating device and the drying device to detect a total wet film thickness of the first and second sides of the base tape.
The wet film thickness detection system applied to the wet film coating equipment further comprises: the communication device is respectively connected with the first thickness measuring device and the second thickness measuring device to realize communication between the first thickness measuring device and the second thickness measuring device, the first thickness measuring device is used for detecting the position information containing the base band detection position when the thickness of the first surface wet film of the base band is measured, the position information is sent to the second thickness measuring device through the communication device, and the second thickness measuring device is used for detecting the total wet film thickness of the corresponding base band detection position according to the position information.
The first thickness measuring device and the second thickness measuring device both comprise laser thickness gauges.
The communication device includes a router.
A wet film thickness detection method based on the wet film thickness detection system comprises the following steps: detecting a first wet-on-film thickness of the base tape between the first coating device and the second coating device; detecting the total wet film thickness of the first side and the second side of the base tape between the second coating device and the drying device; and calculating the second wet-side film thickness of the base band according to the first wet-side film thickness of the base band and the total wet-side film thickness.
When the thickness of the first surface wet film of the base band is detected, position information containing a base band detection position is further obtained, so that the total wet film thickness of the corresponding base band detection position is detected and obtained according to the position information, and the thickness of the second surface wet film at the base band detection position is calculated according to the thickness of the first surface wet film and the total wet film at the same base band detection position.
The wet film coating apparatus further includes a coating control device connected to the first coating device and the second coating device, respectively, to control the first coating device and the second coating device, and the wet film thickness detection method further includes: feeding back the first and second wet-side film thicknesses of the base tape to the coating control device.
The invention has the beneficial effects that:
according to the invention, the first thickness measuring device is arranged between the first coating device and the second coating device to detect the thickness of the first-side wet film of the base band, and the second thickness measuring device is arranged between the second coating device and the drying device to detect the total thickness of the two sides of the base band, so that the real-time synchronous measurement, monitoring and subsequent feedback control of the thickness of the single-side and double-side wet films can be realized through the two thickness measuring devices, a thickness gauge with radiation hazard is prevented from being used for a dry film, the thickness feedback position is closed, the real-time performance of thickness feedback is improved, the accuracy of coating thickness measurement can be improved, and the safety, reliability and production efficiency of a coating process can be improved.
Drawings
FIG. 1 is a schematic structural diagram of a wet film coating apparatus and a wet film thickness detection system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a wet film thickness detection system applied to a wet film coating apparatus according to an embodiment of the present invention;
FIG. 3 is a flow chart of a wet film thickness detection method according to one embodiment of the present invention;
FIG. 4 is a flowchart of a wet film thickness detection method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the wet film coating apparatus according to the embodiment of the present invention includes a first coating device 1, a second coating device 2, and a drying device 3, which are sequentially disposed along a running direction of a base tape, the first coating device 1 being disposed corresponding to a first surface of the base tape to coat the first surface of the base tape, and the second coating device being disposed corresponding to a second surface of the base tape to coat the second surface of the base tape. Specifically, the coating die of the first coating device 1 is mounted on the first side of the base tape, and the coating die of the second coating device 2 is mounted on the second side of the base tape, so that double-sided coating of the base tape is achieved by the two coating devices. Further, as shown in fig. 1, the wet film coating apparatus may further include a baseband unreeling machine 4, a baseband reeling machine 5, and a plurality of rollers 6, wherein the baseband unreeling machine 4 is configured to unreel an uncoated baseband, the baseband reeling machine 5 is configured to reel a baseband with a double-sided coating completed, the rollers 6 are configured to perform limiting and auxiliary transmission on the baseband, and one of the rollers 6 is disposed corresponding to the coating die head of the first coating device 1.
As shown in fig. 1 and 2, the wet film thickness detection system applied to the wet film coating apparatus according to the embodiment of the present invention includes a first thickness measuring device 10 and a second thickness measuring device 20. The first thickness measuring device 10 is disposed between the first coating device 1 and the second coating device 2 to detect the first-side wet film thickness of the base tape, and the second thickness measuring device 20 is disposed between the second coating device 2 and the drying device 3 to detect the total wet film thickness of the first side and the second side of the base tape.
Further, as shown in fig. 2, the wet film thickness detection system applied to the wet film coating apparatus may further include a communication device 30, and the communication device 30 is connected to the first thickness measuring device 10 and the second thickness measuring device 20 respectively, so as to implement communication between the first thickness measuring device 10 and the second thickness measuring device 20.
In the embodiment of the present invention, when detecting the thickness of the first surface wet film of the baseband, the first thickness measuring device 10 further obtains the position information including the detection position of the baseband, and sends the position information to the second thickness measuring device 20 through the communication device, and the second thickness measuring device 20 obtains the total wet film thickness of the corresponding detection position of the baseband through detection according to the position information. Thus, the second wet-side film thickness at the base-band detection position can be calculated from the first wet-side film thickness and the total wet-side film thickness at the same base-band detection position. It should be understood that there may be slight differences in coating thickness at different positions of the base tape, and therefore the thickness data detected by the embodiment of the present invention is accompanied by the position data, so that another one-sided wet film thickness can be obtained according to the difference between the two-sided wet film thickness and the one-sided wet film thickness at the same position.
In a specific embodiment of the present invention, the first thickness measuring device 10 and the second thickness measuring device 20 each include a laser thickness gauge, and the communication device 30 includes a router.
In an embodiment of the present invention, the first thickness measuring device 10 and the second thickness measuring device 20 may further include an industrial personal computer, and the second wet film thickness of the base band may be calculated by the industrial personal computer of the first thickness measuring device 10 or the second thickness measuring device 20. When the industrial personal computer of the first thickness measuring device 10 calculates the thickness of the second surface wet film of the base band, the data transmission mode in the wet film thickness detection system is as follows: the first thickness measuring device 10 sends the detected thickness of the first surface wet film of the baseband and the position information of the detection position of the baseband to the second thickness measuring device 20 through the communication device 30, and the second thickness measuring device 20 sends the detected thickness of the total wet film to the first thickness measuring device 10 through the communication device 30.
According to the wet film thickness detection system applied to the wet film coating equipment, the first thickness measuring device is arranged between the first coating device and the second coating device to detect the thickness of the first-side wet film of the base band, and the second thickness measuring device is arranged between the second coating device and the drying device to detect the total thickness of the two sides of the base band, so that the real-time synchronous measurement, monitoring and subsequent feedback control of the thickness of the single-side and double-side wet films can be realized through the two thickness measuring devices, a thickness gauge with radiation hazard for a dry film is avoided, the thickness feedback position is drawn, the real-time performance of thickness feedback is improved, the accuracy of coating thickness measurement can be improved, and the safety, reliability and production efficiency of a coating process can be improved.
Based on the wet film thickness detection system applied to the wet film coating equipment in the embodiment, the invention further provides a wet film thickness detection method.
As shown in fig. 3, the method for detecting a wet film thickness according to an embodiment of the present invention includes the following steps:
and S1, detecting the first-side wet film thickness of the base tape between the first coating device and the second coating device.
S2, the total wet film thickness of the first and second sides of the base tape is detected between the second coating device and the drying device.
And S3, calculating the second wet film thickness of the base band according to the first wet film thickness and the total wet film thickness of the base band.
Further, when the first surface wet film thickness of the base band is detected, the position information including the base band detection position is also acquired, so that the total wet film thickness of the corresponding base band detection position is detected according to the position information, and the second surface wet film thickness of the base band detection position is calculated according to the first surface wet film thickness and the total wet film thickness of the same base band detection position.
Specifically, the recording of the baseband displacement and the time can be performed by setting the recording device on a baseband unreeling machine, a baseband reeling machine or a roller, and the recording device is transmitted to the first thickness measuring device, when the first thickness measuring device detects the thickness of the first surface wet film of the baseband, the current baseband displacement and the time are obtained and used as the position information of the current detection position point, and when the detection position point reaches the position of the second thickness measuring device 20 according to the baseband displacement, the displacement speed and the time, the second thickness measuring device 20 detects the current total wet film thickness. And finally, obtaining the thickness of the second wet film at the position point by differentiating the thickness of the total wet film from the thickness of the first wet film.
Further, the wet film coating apparatus may further include a coating control device connected to the first coating device and the second coating device, respectively, to control the first coating device and the second coating device, and the wet film thickness detection method according to an embodiment of the present invention may further include: the first side wet film thickness and the second side wet film thickness of the base tape are fed back to the coating control device. The first surface wet film thickness and the second surface wet film thickness are fed back to the coating control device, so that the coating control device can respectively control the first coating device and the second coating device according to the first surface wet film thickness and the second surface wet film thickness, and the coating quality is guaranteed.
The wet film thickness detection method according to the embodiment of the present invention will be described in detail below by taking an example in which an industrial personal computer of the first thickness measuring device calculates the thickness of the second wet film.
As shown in fig. 4, the method for detecting a wet film thickness according to an embodiment of the present invention includes the following steps performed by the first thickness measuring device and the second thickness measuring device, respectively:
the first thickness measuring device: measuring the thickness to obtain single-side thickness data; obtaining a thickness measuring position and sending the thickness measuring position to a second thickness measuring device; storing the current corresponding thickness measuring position and single-side thickness data; receiving double-sided thickness data of a second thickness measuring device; and (4) subtracting the double-sided thickness data of the second thickness measuring device from the single-sided thickness data measured by the second thickness measuring device to obtain the other single-sided thickness data.
The second thickness measuring device: measuring the thickness to obtain double-sided thickness data; judging whether the thickness measuring position arrives; and if so, sending the current double-face thickness data to the first thickness measuring device.
And after the steps are finished, circularly performing thickness detection at the next position.
According to the wet film thickness detection method provided by the embodiment of the invention, the thickness of the first-side wet film of the base band is detected between the first coating device and the second coating device, the total wet film thickness of the two sides of the base band is detected between the second coating device and the drying device, and the thickness of the second-side wet film of the base band is calculated according to the thickness of the first-side wet film and the total wet film thickness, so that the real-time synchronous measurement and monitoring and subsequent feedback control of the thickness of the single-side and double-side wet films can be realized, a thickness gauge with radiation hazard is prevented from being used for a dry film, the thickness feedback position is closed, the real-time performance of thickness feedback is improved, the accuracy of coating thickness measurement can be improved, and the safety, reliability and production efficiency of a coating process can be improved.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The meaning of "plurality" is two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A wet film thickness detection system applied to a wet film coating apparatus, wherein the wet film coating apparatus includes a first coating device, a second coating device and a drying device, which are sequentially arranged along a running direction of a base tape, the first coating device is arranged corresponding to a first surface of the base tape to coat the first surface of the base tape, the second coating device is arranged corresponding to a second surface of the base tape to coat the second surface of the base tape, the wet film thickness detection system includes:
the first thickness measuring device is arranged between the first coating device and the second coating device to detect the thickness of the first surface wet film of the base band;
a second thickness measuring device disposed between the second coating device and the drying device to detect a total wet film thickness of the first and second sides of the base tape.
2. The wet film thickness detection system applied to the wet film coating apparatus according to claim 1, further comprising:
the communication device is respectively connected with the first thickness measuring device and the second thickness measuring device to realize communication between the first thickness measuring device and the second thickness measuring device, the first thickness measuring device is used for detecting the position information containing the base band detection position when the thickness of the first surface wet film of the base band is measured, the position information is sent to the second thickness measuring device through the communication device, and the second thickness measuring device is used for detecting the total wet film thickness of the corresponding base band detection position according to the position information.
3. The wet film thickness detection system applied to the wet film coating apparatus according to claim 1 or 2, wherein the first thickness measuring device and the second thickness measuring device each comprise a laser thickness gauge.
4. The wet film thickness detection system applied to a wet film coating apparatus according to claim 2, wherein the communication device includes a router.
5. A wet film thickness detection method based on the wet film thickness detection system according to any one of claims 1 to 4, comprising the steps of:
detecting a first wet-on-film thickness of the base tape between the first coating device and the second coating device;
detecting the total wet film thickness of the first side and the second side of the base tape between the second coating device and the drying device;
and calculating the second wet-side film thickness of the base band according to the first wet-side film thickness of the base band and the total wet-side film thickness.
6. The method according to claim 5, wherein when detecting the first wet film thickness of the base tape, position information including a detection position of the base tape is further acquired, so that the total wet film thickness of the corresponding detection position of the base tape is detected based on the position information, and the second wet film thickness at the detection position of the base tape is calculated based on the first wet film thickness and the total wet film thickness at the same detection position of the base tape.
7. The wet film thickness detection method according to claim 5 or 6, wherein the wet film coating apparatus further includes a coating control device that is connected to the first coating device and the second coating device, respectively, to control the first coating device and the second coating device, the wet film thickness detection method further comprising:
feeding back the first and second wet-side film thicknesses of the base tape to the coating control device.
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| CN202011225133.0A CN112317260A (en) | 2020-11-05 | 2020-11-05 | Wet film thickness detection system and method applied to wet film coating equipment |
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| CN202011225133.0A CN112317260A (en) | 2020-11-05 | 2020-11-05 | Wet film thickness detection system and method applied to wet film coating equipment |
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